Finding the Fourth Proportional to 378,358,642.44, 522,134,695.62 and 204,518,386.44
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Solution
The fourth proportional to 378,358,642.44, 522,134,695.62 and 204,518,386.44 is: 282,235,248.45
Step by Step Solution
- Step 1: Write the proportion equation
378,358,642.44 : 522,134,695.62 = 204,518,386.44 : x - Step 2: Convert to fraction form
378,358,642.44/522,134,695.62 = 204,518,386.44/x - Step 3: Cross multiply
378,358,642.44x = 522,134,695.62 × 204,518,386.44 - Step 4: Simplify right side
378,358,642.44x = 106,786,145,452,542,928 - Step 5: Solve for x
x = 106,786,145,452,542,928/378,358,642.44 - Step 6: Final answer
x = 282,235,248.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.